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Differences What are the advantages of each

Front view of Radeon HD 7950 Mac

Reasons to consider the
AMD Radeon HD 7950 Mac

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Higher memory bandwidth 240 GB/s vs 224.4 GB/s More than 5% higher memory bandwidth
Significantly wider memory bus 384 bit vs 256 bit 50% wider memory bus
Front view of GeForce GTX 970

Reasons to consider the
Nvidia GeForce GTX 970

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Significantly higher effective memory clock speed 7,012 MHz vs 5,000 MHz More than 40% higher effective memory clock speed
Higher clock speed 1,050 MHz vs 800 MHz More than 30% higher clock speed
Significantly higher pixel rate 58.8 GPixel/s vs 25.6 GPixel/s More than 2.2x higher pixel rate
More memory 4,096 MB vs 3,072 MB Around 35% more memory
Significantly more render output processors 56 vs 32 24 more render output processors
Better floating-point performance 3,494 GFLOPS vs 2,867.2 GFLOPS More than 20% better floating-point performance
Significantly higher memory clock speed 1,753 MHz vs 1,250 MHz More than 40% higher memory clock speed
Higher texture rate 109.2 GTexel/s vs 89.6 GTexel/s More than 20% higher texture rate
Better face detection score 104.68 mPixels/s vs 67.8 mPixels/s Around 55% better face detection score
Lower TDP 148W vs 200W More than 25% lower TDP

Benchmarks Real world tests of Radeon HD 7950 Mac vs GeForce GTX 970

Bitcoin mining Data courtesy CompuBench

Radeon HD 7950 Mac
370.18 mHash/s
GeForce GTX 970
487.83 mHash/s

Face detection Data courtesy CompuBench

Radeon HD 7950 Mac
67.8 mPixels/s
GeForce GTX 970
104.68 mPixels/s

Ocean surface simulation Data courtesy CompuBench

Radeon HD 7950 Mac
1,230.77 frames/s
GeForce GTX 970
1,586.77 frames/s

Particle simulation Data courtesy CompuBench

Radeon HD 7950 Mac
460.4 mInteraction/s
GeForce GTX 970
1,118.61 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

Radeon HD 7950 Mac
-1 frames/s
GeForce GTX 970
8.65 frames/s

Video composition Data courtesy CompuBench

Radeon HD 7950 Mac
81.68 frames/s
GeForce GTX 970
37.16 frames/s

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